View In: ArcGIS JavaScript   ArcGIS Online Map Viewer

Service Description:

All Layers and Tables

Has Versioned Data: false

MaxRecordCount: 2000

Supported Query Formats: JSON

Supports Query Data Elements:

Layers:

• USGS NWIS - Periodic GW Depth Measurements (0)

Description: Layer displaying periodic groundwater level depth measurements taken from USGS National Water Information System (NWIS) wells in California. Data obtained February 23, 2026. Data updated semi-annually. Data obtained from following link: https://nwis.waterdata.usgs.gov/ca/nwis/gwlevels

Service Item Id: 3214216ea7b74126ac6b6e3f880272a2

Copyright Text: Data obtained from USGS, please reference the link in the descriptions for questions regarding the data. For questions about this layer, please contact GAMA@waterboards.ca.gov.

Spatial Reference: 102100  (3857)  LatestVCSWkid(0)


Initial Extent:

XMin: -1.362840056170644E7
YMin: 4548828.730489064
XMax: -1.3400058872487465E7
YMax: 4662699.914089078
Spatial Reference: 102100  (3857)  LatestVCSWkid(0)

Full Extent:

XMin: -1.38316600971E7
YMin: 3834732.549900003
XMax: -1.27121081672E7
YMax: 5156282.858900003
Spatial Reference: 102100  (3857)  LatestVCSWkid(0)

Units: esriMeters

Document Info:

N/A

Enable Z Defaults: true

Supports ApplyEdits With Global Ids: false

Supports Dynamic Layers: false

Child Resources:   Info   Relationships

Supported Operations:   Query   Query Contingent Values   Append   Get Estimates